These are tools that the oo designer puts to use in order to structure the analysis, the design, and the implementation, but they aren't central to what makes an oo program object-oriented.

这些是OO设计人员用来构成分析、设计和实现的工具，但它们并不是使程序面向对象的主要部分。

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In this paper, the high Angle conveyor design, Under the conditions of work required to determine reasonable conveyor drive system and structure of the program.

本文对高倾角带式输送机的设计，根据工作条件的要求合理地确定输送机的传动系统和结构方案。

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Based on the design of global structure and hardware of the control system, detailed program flow design of automatic coal stuffing and slag removing is presented.

在控制系统总体结构设计和硬件设计的基础上，详细论述了自动加煤和自动除灰的程序流程设计。

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